[INFO] fetching crate etwin_serde_tools 0.8.1...
[INFO] testing etwin_serde_tools-0.8.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate etwin_serde_tools 0.8.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate etwin_serde_tools 0.8.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate etwin_serde_tools 0.8.1
[INFO] finished tweaking crates.io crate etwin_serde_tools 0.8.1
[INFO] tweaked toml for crates.io crate etwin_serde_tools 0.8.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25e81271e56da010837a6cc74ea1a19a48f0c2874ef311b237a896ee2e379435
[INFO] running `Command { std: "docker" "start" "-a" "25e81271e56da010837a6cc74ea1a19a48f0c2874ef311b237a896ee2e379435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25e81271e56da010837a6cc74ea1a19a48f0c2874ef311b237a896ee2e379435", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25e81271e56da010837a6cc74ea1a19a48f0c2874ef311b237a896ee2e379435", kill_on_drop: false }`
[INFO] [stdout] 25e81271e56da010837a6cc74ea1a19a48f0c2874ef311b237a896ee2e379435
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7e6e4625383dc73beac06a7115800d097b498606256257e66fff7376a0fae192
[INFO] running `Command { std: "docker" "start" "-a" "7e6e4625383dc73beac06a7115800d097b498606256257e66fff7376a0fae192", kill_on_drop: false }`
[INFO] [stderr]    Compiling etwin_serde_tools v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "7e6e4625383dc73beac06a7115800d097b498606256257e66fff7376a0fae192", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e6e4625383dc73beac06a7115800d097b498606256257e66fff7376a0fae192", kill_on_drop: false }`
[INFO] [stdout] 7e6e4625383dc73beac06a7115800d097b498606256257e66fff7376a0fae192
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c90332424080ac273827ca98603db94d4df8f7b8950ad894acef3a22972d98c8
[INFO] running `Command { std: "docker" "start" "-a" "c90332424080ac273827ca98603db94d4df8f7b8950ad894acef3a22972d98c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling etwin_serde_tools v0.8.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.52s
[INFO] running `Command { std: "docker" "inspect" "c90332424080ac273827ca98603db94d4df8f7b8950ad894acef3a22972d98c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c90332424080ac273827ca98603db94d4df8f7b8950ad894acef3a22972d98c8", kill_on_drop: false }`
[INFO] [stdout] c90332424080ac273827ca98603db94d4df8f7b8950ad894acef3a22972d98c8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d47eeb38a541a516423265459b2e275f1a7a0044d77ba0f4c6d1039c2bb4f226
[INFO] running `Command { std: "docker" "start" "-a" "d47eeb38a541a516423265459b2e275f1a7a0044d77ba0f4c6d1039c2bb4f226", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/etwin_serde_tools-c1124cf6d629f3f2)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::read_error_on_missing_explicit_option ... ok
[INFO] [stdout] test test::read_ok_on_null_explicit_option ... ok
[INFO] [stdout] test test::read_error_on_missing_nested_option ... ok
[INFO] [stdout] test test::read_ok_on_defined_explicit_option ... ok
[INFO] [stdout] test test::read_ok_on_null_nested_option ... ok
[INFO] [stdout] test test::read_ok_on_defined_nested_option ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests etwin_serde_tools
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - deserialize_explicit_option (line 32) ... ok
[INFO] [stdout] test src/lib.rs - deserialize_nested_option (line 69) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.96s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d47eeb38a541a516423265459b2e275f1a7a0044d77ba0f4c6d1039c2bb4f226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47eeb38a541a516423265459b2e275f1a7a0044d77ba0f4c6d1039c2bb4f226", kill_on_drop: false }`
[INFO] [stdout] d47eeb38a541a516423265459b2e275f1a7a0044d77ba0f4c6d1039c2bb4f226